Folding machine and method of covering insoles to which said machine may be applied



2,106,268 NsoLEs e sheets-sheet 1 F. E. BERTRAND FOLDING MACHINE AND METHOD OF COVERING I TO WHICH SAID MACHINE MAY BE APPLIED Jan. 25, 1938.

Filed May 15, 1936 igil.

Jan. 25, 1938. F. E. BERTRAND 2,106,268

FOLDING MACHINE AND METHOD OF COVERING INSOLES TO WHICH SAID MACHINE MAY BE APPLIED Filed May 15, 1936 6 Sheets-Sheet 2 Figi 3.

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F. E. BERTRAND FOLDING MACHINE AND METHOD OF COVERI'NG INSOLES TO WHICH SAID MACHINE MAY BE APPLIED Filed May 15, 1936 Ja... 25, 193s.

6 Sheets-Shea# 3 52 NVE/VTM? 6 Sheets-Sheet 4 F. E. BERTRAND FOLDING MACHINE AND METHOD OF COVERING INSOLES TO WHICH SAID MACHINE MAY BE APPLIED Filed May 15, 1955 Jan. 25, 1938. F. E. BERTRAND 2,106,268

FOLDING' MACHINE AND METHOD OF COVERING INSOLES TO WHICH SAID MACHINE MAY BE APPLIED Filed May l5, 1956 6 Sheets-Sheet 5 Jan. 25, 1938. F. E. BERTRAND 2,106,268

FOLDING' MACHINE AND METHOD OF COVERNG INSOLES Y TO WHICH SAID MACHINE MAY BE APPLIED l' Filed May l5, 1936 6 Sheets-Sheet 6 /M/g/v TU@ rmdb@ MLA TAS/gama Tn insole.

Patented Jan. 25, 1938 ETED STATES PATENT OFFICE FOLDING MACHINE AND METHOD OF COVERING INSOLES TO WHICH SAID MA- CHINE MAY BE APPLIED Application May 15, 1936, Serial No. 79,950

62 Claims.

My invention relates to the folding of marginal portions of sheet-material with reference to the remainder of the sheet, it being herein disclosed in connection with the folding about the edge of an insole the margin of a covering sheet which has previously been attached to said insole.

It is sometimes desired to apply to a ribbed insole a protective covering or sock-lining. To render this smooth and secure against displacement, the covering, which may be of thin leather, is preferably cemented to the tread-surface of the insole and also carried over the edge across the feather and against the outside of the rib. To this additional area the covering is not only adhesively attached and thereby rendered more secure, but when the Welt is applied, the stitching, which passes through both the covering and the insole-rib, will positively hold said covering against slipping upon the tread-surface of the It is an object of my invention to effect such folding and attaching operations speedily and smoothly, with little effort on the part of the operator and, when ribbed insoles are being operated upon, so that the covering shall extend with substantial uniformity to the edge of the rib regardless of variations in the Width of the feather. The invention includes both a machine and a method in the performance of which said machine may be utilized.

In the attainment of the above object, there may be employed, in different combinations, folding, cutting and guiding instrumentalities and a Work-support, which may be in the form of a table, with which is preferably associated means for pressing the covering-material against the edge of an insole or the like upon the table. The Work-support or table and the pressing means may be controlled together by the operator to place them in positions rendering easy the introduction of the Work. The table is preferably rotatable to facilitate the feeding or advance of the Work, and the cooperating sheet-engaging member applying edge-pressure is yieldable. A Workgnide is shown herein as entering the outer channel of an insole, it locating the work urged toward it by the pressure member and directing said Work in its advance. 'Ihe guide is preferably movable toward and from the table to clamp the Work during the non-feeding intervals and to free it for its forward travel. With the Work located as just indicated, a cutter is movable across the table to act upon it. In connection with the folding of the sheet-material across the insole,`

and also trim the edge of the material so it will register substantially with the edge of the rib. For this purpose, the cutter or knife is preferably L-shaped, having a cutting edge perpendicular to the work-supporting surface of thetable and 5 another cutting edge substantially parallel to such surface. There may be, furthermore, a cutter in the form of an anvil co-operating with the knife, and to hold the margin or like portion o-f the Work clamped to this anvil to receive the knife-action, I may provide a movable engaging member. As previously indicated, the surface over which this engaging member moves may vary in Width, as does the feather of an insole. By yeldably actuating the member, it may be caused to effect this inward folding and press the material uniformly against the face of the anvil regardless of the Width of the feather. The remainder of the margin is left to be trimmed by the knife to a definite extent governed by the constant distance the margin is held from the rib for cutting and by the height of said rib. Movement of the engaging member, both under the influence of the spring which provides the yield and in the opposite direction, is controlled by the movement of the knife. In addition to the cutting, folding and clamping movements which have been outlined, the same elements are actuated in another direction, as longitudinally of the insole-feather and -rib instead of transversely thereof, to advance the work in successive steps. This feeding movement is produced by mounting upon a horizontally movable carrier, levers or other actuating means for the elements. The feeding of the Work is facilitated by the rotation of the table, already mentioned, and by a moven ment of the edge-pressing member, which is mounted to oscillate with the carrier. Movement of the channel-guide toward the table retains the Work against reverse travel during the return of 40 the feeding elements to their initial positions, i While opposite movement of the guide releases the Work for feeding.

The method of my invention involves a measi uring action upon the margin of a sheet to de- 4f termine its correct trimming `for-different Widths of insole-feather. To this end, the margin is turned against the edge of the insole, out in this position and then folded and pressed against the feather and ribof the insole. 'Ihe cutting pref- 50 erably involves both a slashing and a trimming of the margin, the location of the trimming cut causing the trimmed edge to lie approximatelyv at the edge of the insole-rib after the feeding and pressing operations have been performed. The 55 '3 Fig. 10, a vertical section on the line X-X of measuring eifect is more particularly obtained by carrying the margin across the feather through a distance determined by the width of said feather and, with the margin thus located, making the trimming cut at a definite distance from the feather. This distance will be unvarying. Approximate registration of the trimmed marginal edge with the -edge of the rib when folded is thereby assured.

In the accompanying drawings, which illustrate one of the many possible embodiments of my invention,

Fig. 1 is a top plan View of the improved folding machine;

Fig. 2, a similar view, taken just above the work-supporting table;

Fig. 3, a front elevation with parts broken away;

Fig. 4, a side elevation, looking from the right.,

in Fig. 3;

Fig. 5, a central, vertical section through the table;

Fig. 6, a partial view similar to Fig. 4 with portions in section, the .work being in the machine and the operating elements in another. position;

Fig. 7 is still another such section, showing the work grasped and being voperated upon by the knife;

Fig. 8 is an enlarged section through the elements most closely associated with the work and with the knife in its cutting position this being viewed in the direction opposite to Fig. 7;

Fig. 9 is a horizontal section on the line IX-IX of Fig. 8;

Fig. 8;

Fig. 11, a fragmentary perspective, looking inwardly at the work positioned for the operations upon it;

' Fig. 12 adds to the knife, anvil and clamping member of Fig. 11 the folding nger, and shows all these elements in their active positions;

Fig. 13 is a perspective view of the knife, and

Figs. 14 and 15 illustrate, respectively, an insolewith its cover-sheet adhering to it ready for folding, and said insole after the completion of the folding operation.

Herein, the operating elements of the machine appear as movable upon a frame I0 carried by a base I2, the structure being adapted for mounting upon a bench (Fig. 4). Guided for vertical reciprocation .at the front of the frame in a bracket I4 is a plunger I 6, upon which is clamped a collar I8. YThis collar, by engagement atits opposite sides with upper and lower surfaces 20 and 22 upon the bracket, limits the extent of movement of the plunger in opposite directions (Fig. 6). At its upper end, the plunger has a head 24 in which is an axial bore receiving a short, depending spindle 26 upon a freely rotatable table 28, which table may rest upon bearing-balls 30 interposed between it and the head. The table has an upper horizontal work-supporting surface and is urged upwardly by a spring 32 lying in an axial bore in the plunger I6. This spring abuts at the bottom against a screw 34 threaded vertically through a plate 36 secured to the under side of the bracket I4. Variation in the position of the screw allows the force with which the spring urges the collar against the bracketsurface 20 to be altered. Upon the table the work is supported for the operations upon it. In the present instance, the work-piece, as illustrated in Fig. 14 of the drawings, consists of an insole I, which is of the Economy type and has, in addition to the usual body a, double-lipped rib b and reinforcing sheet c, a sheet s of comparatively thin leather or leather-substitute, cemented to the tread or foot-contacting surface of the body. This sheet covers the forepart of the insole, extending from approximately the breast-line to beyond the toe-end, it being of suflicient size to project some distance outside the `insole-periphery. The cement employed for attaching thel sheet s may be latex, or some similar substance which retains its adhesive properties when dry. Upon the table 28 the insole rests, with the sheet s downward.

Movable horizontally in a recess 31 in the head 24 'at its inner side is a slide 38, which is forced normally toward the head by a spring 40. This spring contacts at its outer end with the slide and at the opposite extremity with a horizontally elongated head 42 upon a slide 44 in ways 45 upon which the slide 38 moves and within a bore in which the spring is chiey contained. The slide 44 is guided for vertical movement in ways 46 in a member 41 xed to the lower extremity of a vertical spindle 49 rotatable in the frame at the rear of the table 28. The slide 44 thus furnishes an abutment for the spring 40, rising and falling with the table. A lug rises from the top of the slide 38, and joined to this for vertical adjustment by a slot-.and-screw connection 48 is the shank of an edge-pressing member 50. This member is movable by the slide 38 across the table in a direction generally radial thereof. At its side toward which the work approaches, the member has a vertical extension 52 of substantial height, curved horizontally in the direction of work-advance and tapering downwardly to a horizontal extension 54 (Fig. 3). As is shown most clearly in Fig. 6, there is some capacity for vertical play between the slide 38 and the headrecess 31 in which it moves. The under side of the member 5D may thus shift horizontally upon the table without binding and yet be compelled to travel vertically with said table.

Fulcrumed at the front of the co-llar I8 is a bellcrank-lever 56, a substantially horizontal arm of which is held normally raised by a tension-spring 58, connecting it to the head 24 and exerting less force than the table-spring 32 (Figs. 3 and 5). The inner end of the lever-arm (Fig. 4) is joined by a rod 6I) to an unillustrated treadle. An upstanding arm of the lever 56 is held in an outward position and has contacting with it a rod 62 arranged to slide horizontally in the head 24. Against the opposite end of the rod 62, the slide 38 of the pressing member 50 is forced by the spring 40. Under these conditions, the table 28 is elevated by its spring 32, and the member 5U is at its inmost point upon the table, both being in their active positions. When the operator wishes to insert .an insole in the machine for the operation upon it, he lowers the rod 60. This rst swings the lever 56 about its fulcrum, forcing its vertical arm against the rod 62 and pressing back the slide 38 against the force of its spring 49. This continues until the oscillation of the lever is stopped by engagement with the head 24 (Fig. 6), at which time the member 50 has been carried outside the periphery of the table 28. Further downward pull upon the rod 6I) is transmitted to the plunger through the collar I8, so said collar is lowered against the bracketsurface 22, the spring 32 being compressed. The member 50 descends with the table under the influence of the head 24 upon its slide 38. The

operator inserts the insole in the machine, sliding it over an arcuate rest 6 I, which is secured to the plunger-head 24 and surrounds' the inner, rear portion of the table with its upper surface iiush with that of said table. Then the rod 60 is released, permitting the table to be again elevated by its spring and the member 50 to be moved inwardly over the upper surface of the table. At this time, the inner vertical face of the presser-extension 52 contacts with the under side of the marginal portion of the sheet s, turning it up and forcing it against the edge of the insole-body a.

To the upper extremity of the spindle 49 a carrier-arm `|2 is secured for oscillation in a substantially horizontal plane. Upon this carrier are movably mounted the elements which act upon the work in co-operation with the table, the edgepresser 50 and a channel-guide '|4. These operating elements comprise (Figs. 8, il, and 12) an anvil 16, a slashing and trimming knife 78, a folding iinger and a folding and clamping block 82. At the inner side of the spindle, the carrier-arm has a counterweight 84 to balance the elements at the opposite side of said spindle. To all the operating elements upon the carrier is imparted a movement of translation across the in.- ner side of the table, transversely of the machine and longitudinally of the insole-feather, to feed the work forward, step by step. This is effected by a cam 86 (Fig. 4) upon a driving shaft 88. The shaft is journaled horizontally at the rear of the frame and is rotated continuously through power applied to its pulley 90. The cam acts upon the lower end of a lever 92 fulcrumed upon a spindle 93, xed in the frame, and joined by a link 94, variable in length, through universaljoints to: an arm 96 projecting from the carrier (Fig. 1).

The guide '14, between which and the anvil 16 the rib b of the insole is presented over the table 28, is mounted upon a horizontally extending lever 98 fulcrumed at |00 upon the frame just below the carrier l2. As appears in Figs. 3, '7, and 8, the guide is inclined inwardly and forwardly so it may readily enter and occupy the channel at the inner side of the rib b and has a point |02 to lie within the angle of said channel and a surface |04 against which the layer of fabric c may bear. It is secured to the lever 98 for universal adjustment in a piane intersecting the table by a clamping screw |06 passing through an enlarged opening, with which clamping screw co-operate positioning screws |08, |08.

The anvil 16 is fixed to a depending portion |09 of the carrier 12 by a screw H0, passing with clearance through an opening to permit adjustment. Said anvil has a recess ||2 (Figs. 11 and 12) through which a portion of the knife 18 operates. The inner edge ||4 of the lower wall of the recess and the corresponding edge ||6 of the vertical wall below this recess furnish ledgerblades for co-operation with angularly disposed edges of the knife. anvil below the recess is inclined downwardly and inwardly to generally conform to the angle at which the insole-rib is disposed. The inner wall |20 (Fig. 7) is substantially vertical to support the margin of the sheet s which is pressed against it by the member 32 during the slashing and trimming operation.

The knife 18 and the folding linger 89 are carried upona plate |2| secured by a screw |23 to the lower extremity of a substantially vertical lever |22 fulcrumed at |24 upon the carrier |2.

The outer wall ||8 of the The knife is attached to the plate 2| by screws |26 (Figs. 7, 9, and 10) and has a horizontal trimming edge |28 and an adjacent vertical slashing edge |30 (Fig. 13) co-operating, respectively, with the anvil-edges ||4 and H6. 'Ihe openings through which both the screws i23 and l26 pass are in the form of slots to provide for universal adjustment of the knife in a vertical plane. The linger 80 is preferably furnished by a flat bar, sufficiently thin to yield somewhat in contact with the work, and provided with an enlarged shank |32 through slots in which pass screws |34 fixing it adjustably in a horizontal direction to the plate |2| at the opposite side from the knife. At the outer extremity of the finger is an upward extension |36, sooutwardly inclined that it generally conforms to the inner face of the rib b. At the bottom of the extension |36 where it meets the horizontal portion, the finger is preferably provided with a projection |38 which rests upon and rubs over the margin of the sheet s above the feather of the insole, pressing the sheet against said feather and into the angle of the outer channel.

Upon the portion |09 of the carrier l2 a bellcrank-lever |40 is fulcrumed by a spindle |42. To a downwardly extending arm of this lever there is adjustably secured by a Slot-and-screw connection |44 the folding and clamping block 82. This block has a vertical, work-engaging face |46 (Fig. 7) which co-operates with the face |20 upon the anvil 'i6 to hold the margin of the sheet s for cutting and thereafter during the feeding of the work, as will later be described. There is a recess |47 in the member 82 which registers with thel anvil-recess ||2 yduring the cutting and feeding operation, and through which the portion |28 of the knife reciprocates. An outwardly extending, generally horizontal arm of the lever |40 lies below a contact-roll |48 (Fig. 3) upon a projection |50 from the hub of the lever |22. The fulcrum-sp-indle |42 of the lever |40 is surrounded by and connected to a torsion-spring |52, which acts to force the arm of the lever |40 constantly against the roll |48.

The manner in which the various Work-engaging elements are actuated is most clearly shown in Figs. 1, 3, and 4. Upon the shaft 88 a cam |60 is fixed and causes the oscillation of a lever |62 turning about the spindle 93, this lever having upwardly extending arms |64 and |66. The longer of these arms, |64, is joined by a substantially horizontal link |68, adjustable as to length and having universal connections, to the lever |22. The movement thus imparted to said lever |22 carries the knife '|'8 and the finger 80 back and forth in an approximately horizontal direction to cause cutting and folding actions. To prevent the knife and its supporting lever from vibrating during its oscillation and thus failing to properly co-operate with the anvil 76 in making its cut, the plate |2| upon which it is mounted travels at its inner face in contact with a guideplate |61. This guide-plate has a shank fixed adjustably by a set-screw |69 to a depending portion of the arm l2 (Figs. 4 and 10). The sliding engagement between the two plates holds the knife steady for the production cf its cut. At the extreme forward positions of the knife and finger and before their movement is reversed, the forward end of the carrier 'l2 swings in a clockwise direction (Fig. l), and both act in co-operation with the anvil 'i6 to feed the Work a step forward. The arm |66 of the lever |62 is coupled by a substantially vertical link |10 to the lever 98 the table and moving back the member 50.

through a slot-and-screw connection |12. coupling causes the channel-guide 14 to risev and fall, the relation between the elements. being such that when the arm |84 swings to the left. (Fig. 4) the link is lifted to lo-wer theguide 14 and clamp the work upon the table to retain it against reverse movement as the carrier12 returns to its initial position afterthe feeding stroke. During the forward cutting travel. of `the knife, the roll |48 is lifted, as will be seen upon comparison of Figs. 6 and e of the drawings. This leaves the spring 52 free to act upon the clamping member 82, and this is caused to travel somewhat in advance of the knife to engage the upstanding mal'- gin of the sheet s heid by the. member 50, wipe it across the feather of the insole and urge it against the face H8 of the anvil 16 to be cut by the knife. 'I'he yieldable action of the member 82 under the influence of its spring |52 causes it to operate uniformly across feathers of different widths and upon covering-material of different thicknesses and clears said material from. the knife as the latter is retracted. When this rearward travel of the knife occurs, the lowering of .the roll |48 returns the clampingmember to the normal position of Fig. 6.

Considering the operation of the apparatus upon an insole I, the table 28 .is normally raised and the edge-pressing member 50 is forward, as

.appears in Fig. 4. The work-contacting elements above the table are continuously performing successive operating cycles. The operator, taking the insole with its attached sheet s, draws do-wn the treadle-rod 80, this simultaneously lowering The insole is then introduced over the rest 6| and the tab-le with the right-hand end of the rib b, as viewed from the toe-extremity thereof, between the channel-guide 14 and the anvil 1S. The mar- .gin of the sheet s now lies at the inner side |20 of the anvil. Fig. 6 shows the table with the applied work as rising, and the member 50 about to move into contact with the margin of the sheet s to hold it up and force it againstl the edge vof the insole-body a. This occurs upon release of the rod 80. The folding operation now proceeds automatically in successive steps until the opposite extremity of the rib is reached. As appears in Fig. S, the point |02 fof the guide 14 lies at the bottom of the inner channel, the rib being held against it by the upward thrust of the .table and the inward force exerted by the member 50. 'I'he lever |22, under the influence of the cam |60, swings in with the knife 18 and the nger 80, and the block 82, released by the roll .|48 and urged out by the spring |52, carries the margin of the cover-sheet across the insole-feather and clamps it against the anvil-surface ||6 (Fig. 11). Thus heid, the edge |30 of the knife, co-operating with the anvil-edge I8, slashes the margin of the sheet, in a direction substantially perpendicular to the work-supporting surface Vof the table, to allow turning up the peripheral excess of material without fulling, while the knife-edge |28, op-

erating across the anvil-edge ||4 and acting substantially parallel to the table,.trims off any eX- cess of sheet-margin which would project above the insole-rib. As these cuts are made, the divided portion at d, the entire series of which por- :tions may be seen in their final positions in Fig.

against the outer face of the rib. The latex with This which: the parts are. coated, causes the adhesion of the.` sheet-margin to vthe insole-edge and the feather.- and'zrib-surfaces under the influence of the. pressure applied by the member 50 and the linger 80.. i

Inconnecti-on with the member 82, there should be noted its effect in measuring the length of the sheet-portions d as they extend outwardly from the-edgeof the insole-body a. Since the feather Varies in widthat different points about the periphery of the insole, and as the cut at the end of each portiond is made by the edge |28 of the knife 18 before the margin of the sheet s is laid against the outer face of the ribl b, the different lengths of the portions d must be determined before the cuts are made. The insole is always located in a definite radial position upon the table 28, with respect tothe termination of the cutting stroke of the. knife 18, by the channel-guide 14 outside the rib and the anvil 16 inside said rib. Outside the wall. |20 of the anvil, the edge of the insole will extend for different distances, depending upon which peripheral portion the operation is being performed. This will be evident from an inspection of Figs. `14 and 15, which show the difference in the width of the feather, and Fig. '1, illustrating the relation of the machine elements to the work. As the member 82 wipes in the margin of the sheet s over the feather, the yielding action furnished by the spring |52 allows the member to lay upon the feather, up to the bottom. of the anvil-wall |20, whatever width of sheetmargin may be necessary. This leaves to be added to the length of the sheet-portion d an amount equal to the thickness of the bottom of the anvil, plus the height of the rib. The rst of these is constant, and the second, substantially so. A proper vertical location of the knife-edge |28 and its co-operating anvil-edge ||4 will, therefore, provide for the `correct length of each portion d. As a result of this, when the cut portion is laid in place upon the rib, its end will lie approximately at the top of the rib regardless of the width of the adjacent portion of the feather.

When the knife is within the material, the lever 98, controlled with the lever |22 by the cam |80,'has lifted the guide 14 from the channel above the lower surface of the anvil (Fig. 4) relieving the pressure ofthe work against the table. Now the cam 8B actuates the carrier 12, causing the knife, anvil, block and finger to move forward together, carrying the work through a step of feed equal to the width of one of the marginal portions d of thesheet s. The edgepressing member 50 travels with these carrierborne elements, because of its mounting upon the spindle, 49 with the arm 12. The table at this time turns freely upon its ball-bearings 30 to lessen the resistance to work-advance. When the Vfeeding movement of the elements ceases, and the knife, finger, anvil and block are carried outwardly across the table by the lever |22 and rearwardly by the carrier 12 to their initial positions in preparation for the next cutting, folding, pressing and feeding stroke, the lever 98 lowers the guide 14 toward the table. This, with the member 6|, holds the work with suicient force to prevent reverse movement. The operatingsteps which have been described continue until Vthe opposite extremity of the rib b is reached, when the application of the covering is complete.

Having described my invention, what I claim as new and desire to secure by'Letters Patent of the United States is:

1. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a vertically movable support for the tread-surface of the insole, means movable vertically with the support for pressing the material against the edge of the insole, and means movable by the operator to control the pressuremovement.

2. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a vertically movable and rotatable support for the tread-surface of the insole, and means movable vertically with the support and across its rotary supporting surface for pressing the material against the edge of the insole.

3. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a vertically movable support for the tread-surface of the insole, means movable over the support for pressing the material against the edge of the insole, and a member arranged to impart to the support a vertical movement and to the pressing means movement across the support.

4. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a vertically movable support for the tread-surface of the insole, means movable over the support for pressing the material against the edge of the insole, a member connected to the support and pressing means to impart movement to them simultaneously in different directions, and a spring acting oppositely to the member to move the support and pressing means.

5. In a folding machine, a rotatable table, and a work-engaging member movable across the table both in a generally radial direction and in a direction transversely thereto.

6. In a folding machine, the combination with folding means, of a work-supporting table co-operating therewith, a plunger upon which the table is carried, a work-engaging member movable with and over the table, and means carried by the plunger and through which movement is imparted to the table and to the engaging member to move it over said table.

7. In a folding machine, the combination with folding means, of a work-supporting table co-operating therewith, a plunger upon which the table is carried, a slide movable under the influence of the plunger, a second slide movable upon the first, and a Work-engaging member carried by the second slide and movable across the table.

8. In a folding machine, the combination with folding means, of a work-supporting table co-operating therewith, a plunger upon which the table is carried, a slide movable under the influence of the plunger, a second slide movable upon the first, a work-engaging member carried by the second slide and movable across the table, and a lever fulcrumed upon the plunger and acting upon the second slide.

9. In a folding machine, the combination with folding means, of a work-supporting tab-le co-operating therewith, a plunger upon which the tab-le 1s carried, a slide movable under the influence of the plunger, a second slide movable upon the first, a work-engaging member carried by the second slide and movable across the table, a lever fulcrumed upon the plunger and acting upon the second slide, and a member joined to the lever and arranged to move both said second slide and the plun-ger.

10. In a folding machine, the combination with folding means, of a Work-supporting table cooperating therewith, a plunger upon which the table is carried, a slide movable under the influence of the plunger, a second slide movable' upon the first, a Work-engaging member carried by the second slide and movable across the 'tab-le, two springs acting respectively to elevate the table and to carry the work-engaging member inwardly across the table, and a member movable to shift both the table and the work-engaging member in directions opposite to the movements produced by the springs.

11. In a folding machine, the combination with folding means, of a work-supporting table cooperating therewith, a work-engaging member movable across the table, means for impartin-g to the member a movement of reciprocation, and means for imparting to the member a movement of oscillation.

l2. In a folding machine, the combination with folding means, of a work-supporting table co-operating therewith, a work-engaging member movable across the table, means for imparting -to the member a movement of reciprocation, and means for imparting to the member a movement of oscillation, the member being yieldable in the direction of its reciprocation.

13. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the treadsurface of the insole, a guide movable relatively to the support and arranged to enter the channel at the inner side. of the rib, means for moving the guide toward and from the support, and a member engaging the edge of the insole to force it toward the guide.

14. In a machine for folding over the edge of a ribbed insole sheet-material securedto the opposite surface thereof, a support for the tread-W10 surface of the insole, a guide movable relatively to the support and arranged to enter the channel at the inner side of the rib, means for moving the guide toward and from the support, means arranged to move the support toward and from the guide, and a member engaging the edge of the insole to force it toward the guide.

15. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the treadsurface of the insole, a guide movable relatively to the support and arranged to enter the channel at the inner side of the rib', means for moving the guide toward and from the support, a member engaging the edge of the insole to force it toward the guide, and means acting while the guide is away from the support for feeding the insole upon said support.

16. In a folding machine, the combination With folding and feeding means, of a work-supporting table co-o-perating therewith, a work-guide movable between positions in which it presses the work against the table and releases said work for advance, and a member movable to force the Work over the table, said member being also movable transversely of the margin of the work toward and from the guide.

17. In a folding machine, the combination with folding and feeding means, of a work-supporting table col-operating therewith, a work-guide movable between positions in which it presses the work against the table and releases said work for advance, and a member movable over the table against the Work andto-Ward the guide, said member also being movable over the table in the general direction of work-advance.

18. In a folding machine, the combination with folding and feeding means, of a work-supporting table zzo-operating therewith, a work-guide movable between positions in which it presses the, work against the table and releases said work for advance, a lever upon which the guide is mounted, and means arranged to impart to the gui-de upon the lever a universal adjustment along a plane intersecting the table.

19. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the insole, and a cutter movable transversely of the insolefeather from the outer portion inwardly to act upon the margin of the sheet-material.

20. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, asupport for the insole, and a cutter movable transversely of the insolefeather to act upon the margin of the sheet-material, said cutter being also movable in opposite directions longitudinally of said feather.

21. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the tread-surface of the insole, and a cutter movable transversely of the insole-feather to act upon the margin of the sheet-material, the cutter having cutting edges which are respectively substantially parallel to the insole-supporting surface and substantially perpendicular thereto.

22. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the insole, a cutter movable transversely ofthe insole-feather to act upon the margin of the sheetmaterial, and a co-operating cutting member lying between the insole-rib and the margin of the sheet-material.

23. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the insole, a cutter movable transversely of the insolefeather from the outer portion inwardly to act upon the margin of the sheet-material, and a channel-guide lying at the opposite side of the rib from the cutting member.

24. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the insole, a cutter movable transversely of the insolefeather to act upon the margin of the sheetmaterial, a co-operating cutting member lying between the insole-rib and the margin of the sheet-material, and a channel-guide lying at the opposite side of the rib from the cutting member.

25. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the insole, a cutter movable transversely of the insolefeather to act upon the margin of the sheet-material, said cutter being' also movable in opposite directions longitudinally of said feather, and means for imparting to the cutter its longitudinal movement while it is in engagement with the material.

26. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the treadsurface of the insole, a cutter movable transversely of the insole-feather to act upon the margin of the sheet-material, said cutter being also movable in opposite directions longitudinally of said feather, means for imparting to the cutter its longitudinal movement while it is in engagement with the material, a channel-guide lying at the opposite side of the rib from the cutting member and being movable to press the insole toward the support or to free said insole, and means for moving the channel-guide from the insole during the longitudinal movement of the cutter in one direction and against said insole during the longitudinal movement in the opposite direction.

27. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the insole, a cutter movable transversely of the insole-feather to act upon the margin of the sheet-material, and a margin-engaging member movable across the feather with the cutter.

28. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the insole, a cutter movable transversely of the insole-feather to act upon the margin of the sheet-material, a co-operating cutting member lying between the insole-rib and the margin of the sheet-material, and a member movable across the feather to clamp the margin against the cutting member.

29. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the insole,

posite surface thereof, a support for the insole, ai"

cutter movable transversely of the insole-feather to act upon the margin of the sheet-material, a co-operating cutting member lying between the insole-rib and the margin of the sheet-material,

a member movable across the feather to clamp the margin against the cutting member, yieldable means for actuating the clamping member toward the cutting member, and means controlled with the cutter for actuating the clamping memberY in opposite directions.

31. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the insole, a cutter movable transversely of the insole-feather to act upon the margin of the sheet-material;

and a margin-engaging member movable across the feather in advance of the cutter, the cutting and margin-engaging' members being movable together to feed the insole.

32. In a machine for folding over the edge of a" ribbed insole sheet-material secured to the opposite surface thereof, a support for the treadsurface of the insole, a cutter movable transversely of the insole-feather to act upon the margin of the sheet-material, and a member movable with the cutter to press the material against the feather.

33. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the treadsurface of the insole, a cutter movable transversely of the insole-feather to act upon the margin of the sheet-material, and a member movable with the cutter to press the material against the feather and against the outer face of the rib.

34. In a machine for folding over the edge of a ribbed insole sheet-material secured to the opposite surface thereof, a support for the treadsurface of the insole, a cutter movable transversely of the insole-feather to act upon the margin of the sheet-material, a margin-engaging member movable across the feather in advance of the cutter, and a member movable with the cutter to press the material against the feather and against the outer face of the rib.

35. In a folding machine, a work-supporting table, folding means co-operating therewith and acting inwardly across the work, and a knife having a cutting edge substantially parallel to the Work-supporting surface of the table and being movable across said table to produce its cut during the action of the folding means,

36. In a folding machine, a work-supporting table, folding means co-operating therewith, and a knife having an L-shaped cutting edge movable across the table, one portion of said edge being substantially parallel to the work-supporting surface of the table and the other portion being substantially perpendicular thereto.

37. In a folding machine, a work-support, folding means co-operating therewith and acting inwardly across the work, a knife movable across the work-support, and an anvil situated above the table and against which the knife cuts during the action of the folding means.

38. In a folding machine, a work-support, folding means co-operating therewith, a knife-lever movable across the work-support, an anvil against which the knife cuts, and a member having a guide-surface against which the knife-carrying portion of the lever travels.

39. In a folding machine, a work-support, folding meansco-operating therewith, a knife mov ab-le across the work-support, an anvil against which the knife cuts, a Work-guide spaced from the anvil, and a member movable to force the Work toward the guide.

40. In a folding machine, a work-support, a movable carrier, a lever fulcrumed upon the carrier, a knife mounted upon the lever, and means for oscillating the carrier and lever.

41. In a folding machine, a work-supporting table, a movable carrier, a lever fulcrumed upon the carrier, a knife mounted upon the lever, an anvil fixed to the carrier for co-operation with the knife, and means for oscillating the carrier and lever.

42. In a folding machine, a frame, a work-support carried thereby, a carrier pivoted upon the frame, a lever fulcrumed upon the carrier, a knife mounted upon the lever, a lever fulcrumed upon the frame, a work-guide mounted upon the frame-lever, and means for oscillating the carrier and levers.

43. In a folding machine, a frame, a work-support carried thereby, a carrier pivoted upon the frame, a lever fulcrumed upon the carrier, and a knife mounted upon the lever, the carrier being provided with a surface against Which the knifecarrying portion of the lever travels.

44. In a folding machine, a frame, a work-support carried thereby, a carrier pivoted upon the frame, a lever fulc-rumed upon the carrier, a knife mounted upon the le-ver, and a member provided with a shank which may be secured in different positions upon the carrier and having a surface against which the knife-lever may bear in its ftravel.

45. In a folding machine, a work-support, a knife co-operating therewith, an anvil against which the knife cuts, and a movable clamping block (so-operating with the face of the anvil against which the knife operates.

46. In a folding machine, a work-support, a Y

which the knife acts, a pivotal mounting for the f block, and a spring for forcing the block toward the anvil.

48. In a folding machine, a work-support, a movable carrier, a lever fulcrumed upon the carrier, a knife mounted upon the lever, an anvil against which the knife cuts, and a work-clamping block pivoted upon the carrier and controlled by the knife-lever in its relation to the anvil.

49. In a folding machine, a work-support, a movable carrier, a lever fulcrumed upon the carrier, a knife mounted upon the lever, an anvil against which the knife cuts, a Work-clamping block pivoted upon the carrier, and a spring for forcing the block toward the anvil, the knife-lever acting upon the block to separate it from the anvil.

5U. In a folding machine, a work-support, a movable carrier, a lever fulcrumed upon the carrier, a knife mounted upon the lever, an anvil-Y against which the knife cuts, a Work-clamping block pivoted upon th'e carrier and controlled by the knife-lever in its relationl to the anvil, and means for oscillating the carrier and knife-lever.

51. In a folding machine, a Work-supporting table, a lever oscillating across the table, and aknife and folding nger secured to the lever, the knife being arranged to slash the margin of a portion of the work, While the nger forces the divided marginal portion against another workportion during the oscillation of the lever.

52. In a folding machine, a work-supporting table, a lever oscillating across the table, and a knife and folding finger secured to the lever, the finger being yieldable from the table in engagement with the work and provided with an upward work-pressing projection at its end.

53. The combination with a frame, of a table rotatable upon the frame and having a substantially horizontal work-supporting surface, a carrier pivoted upon the frame to move in a plane parallel to the surface of the table, a lever fulcrumed upon the carrier to move in a substantially vertical plane, a knife mounted upon the lever, and means for oscillating the carrier and the lever.

54. The combination with a frame, of a table rotatable upon the frame and having a substantially horizontal work-supporting surface, a carrier pivoted upon the frame to move in a plane parallel to the surface of the table, a lever fulcrumed upon the carrier to move in a substantially vertical plane, a knife mounted upon the lever, means for oscillating the carrier and the knife-lever, a bell-crank-lever fulcrumed upon the carrier, and a work-pressing member mounted upon the bell-crank-lever and co-operating with the knife, the knife-lever having a portion contacting with the bell-crank-lever.

55. The combination with a frame, of a table rotatable upon the frame and having a substantially horizontal work-supporting surface, a carrier pivoted upon the frame to move in a plane parallel to the surface of the table, a lever fulcrumed upon the carrier to move in a substantially vertical plane, a knife mounted upon the lever, a lever fulcrumed upon the frame, a workguide mounted upon the frame-lever, and means for oscillating the carrier and the levers.

56. The combination with a frame, of a table rotatableupon the frame and having a substantially horizontal work-supporting surface, a knife-lever fulcrumed to move its knife in a direction substantially parallel to the surface of the table, a work-guiding lever fulcrumed to move the guide-portion toward and from the surface of the table, an actuating lever, a substantially horizontal link joining the actuating lever to the knife-lever, and a substantially vertical link joining the actuating lever to the guide-lever.

57. The method of folding about the edge of a ribbed insole sheet-material secured to the opposite or tread-surface thereof, which consists in turning the margin of the material against the edge of the insole, cutting the turned margin, and folding and pressing the cut margin against the feather and rib of the insole.

58. The method of folding about the edge of a ribbed insole sheet-material secured to the opposite or tread-surface thereof, which consists in turning the margin of the material against the edge of the insole, slashing the turned margin and trimming its edge, and folding and pressing the slashed margin against the feather and rib of the insole with the trimmed edge lying approximately at the edge of said rib.

59. The method of folding about the edge of a ribbed insole sheet-material secured to the opposite or tread-surface thereof, which consists in turning the margin of thev material againstthe edge of the insole, cutting the turned margin, and during the cuttingoperation folding and pressing the cut margin against the feather and rib of the insole.

60. The method of folding about the edge of a ribbed insole sheet-material secured to the opposite or tread-surface thereof, which consists in locating the insole with its rib between spaced members, holding the margin of the material' across the feather of the insole against onek of the members, cutting the thus located margin, and folding and pressing the cut portion against the rib of the insole.

6l. The method of folding about the edge of a ribbed insole sheet-material secured to the opposite or tread-surface thereof, which consists in locating the insole with its rib between spaced members, carrying the margin of the material across the feather of the insole to one of the members through a distance determined by the width of said feather, trimming the edge of the thus located margin, and folding and pressing the margin against the insole-rib' with its trimmed edge approximately at the edge of said rib.

62. The method of folding about the edge of a ribbed insole sheet-material secured to the opposite or tread-surface thereof, which consists in locating the insole with its rib between spaced members, carrying the margin of the material across the feather of the insole to one of the members through a distance determined by the width of said feather, trimming the edge of the thus located margin at a definite distance from the feather, and folding and pressing the margin against the insole-rib with its trimmed edge approximately at the edge of said rib.

FREDERIC E. BERTRAND. 

